UK Risk Register Details for Helicotylenchus dihystera

Common Names

  • Nematode, common spiral
  • Spiral nematode
  • Steiners spiral nematode

Scenario and Pathways

Scenario for Risk Register

  • show / hide
  • Pest is introduced

Pathway Assessed for Entry to UK

  • show / hide
  • Plants for planting (with soil)

Common Pathways

  • show / hide
This section is currently being developed as part of the next phase of the Risk Register.

Risk Ratings and Current Mitigations

Unmitigated Risks

Likelihood [1 - 5] 3
Spread [1 - 5] 1
Impact [1 - 5] 3
Value at Risk [1 - 5] 4
Likelihood x Impact [1 - 25] 9
UK Relative Risk Rating [1 - 125] 36

Current Mitigations

  • show / hide

Key mitigation for pest

EU prohibition of key pathway (soil)

Regulation

Surveillance

Industry Scheme

Contingency Plan

Awareness

Research

Mitigated Risks

Likelihood [1 - 5] 2
Spread [1 - 5] 1
Impact [1 - 5] 3
Value at Risk [1 - 5] 4
Likelihood x Impact [1 - 25] 6
UK Relative Risk Rating [1 - 125] 24

Proposed Actions

Proposed Actions

Regulation

Deregulation

Management By Industry

Targeted Survey

PRA

Contingency Plan

Publicity

Research

Distribution and Pest Details

Distribution

Country Status Notes
Europe See Notes widespread?
Germany See Notes Possible - high uncertainty over distribution in Europe
Spain See Notes Possible - high uncertainty over distribution in Europe
United Kingdom Absent
Poland See Notes Possible - high uncertainty over distribution in Europe
Portugal See Notes Possible - high uncertainty over distribution in Europe
Romania See Notes Possible - high uncertainty over distribution in Europe
Slovakia See Notes Possible - high uncertainty over distribution in Europe
North America (20) See Notes Includes Central America
South America (6) Present
Oceania (8) Present
Africa (33) Present
Asia (25) Present

Type of Pest

  • Nematode (Tylenchida)

Host or Industry at Risk

  • show / hide

Total protected cultivation

Major Hosts

  • Allium L.
  • Avena sativa L.
  • Begonia L.
  • Beta vulgaris L.
  • Brassica L.
  • Cucumis sativus L.
  • Fragaria ananassa (F. x ananassa) Duch.
  • Hordeum vulgare L. em. Lam.
  • Humulus lupulus L.
  • Malus Mill.
  • Medicago sativa L.
  • Petunia Juss.
  • Pinus L.
  • Pisum sativum Linnaeus
  • Prunus L.
  • Pyrus communis L.
  • Pyrus pyraster Burgsd.
  • Rosa L.
  • Solanum L.
  • Spinacia oleracea L.
  • Trifolium L.
  • Vitis vinifera ssp. vinifera L.
  • Wisteria Nutt.
  • Zea mays L.
  • Zingiber officinale Roscoe

Threats to Protected Cultivation

  • Only protected crops

Forest Tree Pests and Pathogens

Further Information

PRA Availability

UK (2012)

EU and EPPO Listing

Not currently listed

Actions Indicated

  • show / hide

Action

No current Actions Indicated

General Comments

Nematode pest unlikely to be very damaging in its own right, but used as a an indicator species to assess compliance of soil requirements of imported plants to be kept under review in light of EFSA evaluation of soil requirements.

Risk Records for this Pest